"""
@author: 江同学呀
@file: rank_feature_field.py
@date: 2024/7/28 18:53
@desc:
    https://www.elastic.co/guide/en/elasticsearch/reference/7.17/rank-feature.html

    Records a numeric feature to boost hits at query time.
    记录数值特征以在查询时提高命中率。
"""
from abc import ABC
from typing import Type, Union, Dict

from espc.orm.model.base.base import _Base
from espc.orm.model.mapping.field.base_field.base_field import _BaseField
from espc.orm.model.mapping.field.field_attribute import PositiveScoreImpactAttribute
from espc.utils.build_add_attr import build_add_attr


class RankFeatureField(_BaseField, PositiveScoreImpactAttribute, ABC):
    """
    排名特征 字段
    """
    _field_type: str = "rank_feature"

    def __init__(
            self, field_name: str = None, value: float = None, default: float = None, positive_score_impact: bool = None
    ):
        super().__init__(
            field_name=field_name, value=value, default=default, positive_score_impact=positive_score_impact
        )
        return

    def __get__(self, instance: _Base, owner: Type["RankFeatureField"]) -> Union["RankFeatureField", float]:
        return super(RankFeatureField, self).__get__(instance=instance, owner=owner)

    def __set__(self, instance, value: float):
        super(RankFeatureField, self).__set__(instance=instance, value=value)
        return

    @property
    def value(self) -> float:
        return self._value

    @value.setter
    def value(self, value: float):
        self._value: float = value
        return

    @build_add_attr
    def _build(self) -> Dict:
        mapping: Dict = {
            "type": self._field_type,
        }
        return mapping




